2 AETEIIXS. 



as Prof. Smitt has already remarked*, connect these 

 Cheilostomatous forms with the last-named division. To 

 these, others may be added. The production of cells by 

 gemmation from a stolon is characteristic of the largest 

 section of the Ctenostomata as well as of the present family. 

 Another link between it and certain genera amongst the 

 Ctenostomata is the membranous area occupying, in the 

 more typical species, a considerable portion of one side of 

 the zooecium, which has its equivalent in the genera Triti- 

 cella (Dalyell) and (probably) Hippuraria (Busk) and (ac- 

 cording to observations which I have recorded in another 

 part of this work) in Mimosella. 



The Aeteida constitute a peculiar group ; and I agree 

 with Smitt in ranking them as a family, distinguished by 

 the Ctenostomatous cast of its structure. 



On the other hand, it must be noted that they are allied 

 to Eucratea through the character of the polypide, and in 

 some other points. 



The family contains a single genus. 



Genus AETEA, Lamouroux^ . 



AETEA, Larax. Bull. Soc. Philora. 1812: Busk : Smitt, Ac. 

 ASGUINAHIA, Lamk. Extrait du Cours de Zool. 1812 (without character): 

 Johnston, &c. 



* 'Om Hafsbryozoernes Uttyeckl.' &c., 1805, p. 11; " Kritisk Forteck- 

 ning ofver Skandinav. Haf-Bryozoer," (Efversigt af K. Vetensk.-Akad. For- 

 liandlingar, 1867, pp. 293-5. 



t Aetea is clearly a mistake for Actea (or Actaa), one of the Nereids, 

 according to Homer and Ilesiod. Lamouroux himself tells us that his 

 genus was named after one of the daughters of Nereus ; but Actea is not of 

 their number. Through a blunder of the author or printer this name has 

 been substituted for Actea. It occurs in Lamouroux's paper in tie Bull. 

 Soc. Phil. (1812), in his 'Hist. Pol. Corall. flex.,' and in his 'Exposition 

 Methodique,' and has passed into very general use. Nothing could be 



